feat(ai): Ollama Provider 声明不支持 Function Calling

crates/erp-ai/src/provider/ollama.rs

@@ -300,6 +300,20 @@ impl AiProvider for OllamaProvider {
             Err(_) => Ok(false),
         }
     }
+
+    async fn generate_with_tools(
+        &self,
+        _messages: Vec<crate::dto::ChatMessage>,
+        _tools: Vec<crate::dto::ToolDefinition>,
+        _system_prompt: &str,
+        _model: &str,
+        _temperature: f32,
+        _max_tokens: u32,
+    ) -> AiResult<crate::dto::AgentGenerateResponse> {
+        Err(AiError::UnsupportedOperation(
+            "Ollama does not support Function Calling. Use Claude or OpenAI provider for Agent features.".into(),
+        ))
+    }
 }
 
 #[cfg(test)]